with a degree in the field of healthcare or nursing from capella university, you'll have the knowledge to advance your career while making a difference in the lives of patients. let's get started at capella.edu. >>> a story a lot of people are talking about lance armstrong's conversation with oprah winfrey. throughout the interview armstrong alluded to the persuasive culture of doping during his time in elite cycling but he didn't offer it as an excuse. >> you said to me earlier you don't think it was possible to win without doping. >> not in that generation, and i'm not here to talk about others in that generation. it's been well documented. i didn't invent the culture, but i didn't try to stop the culture and that's my mistake and that's what i have to be sorry for and that's what something -- and the sport is now paying the price because of that. and so i am sorry for that.